Human readable changelog:
- avalonmm: Guess sensible defaults when user does not specify clock/voltage.
- minergate: New driver supporting the Spondoolies SP10.
- Stratum: Support for mining.set_extranonce extension; put "#xnsub" at the end of the pool URI to enable.

Human readable changelog:
- getwork and stratum proxy drivers: Proxy-share difficulty is now adjustable using --set pxy:diff=N and/or --set pxy@username:diff=N
- Mac OS X: Support for automatic detection of capable devices at startup.
- jingtian: Support for this new platform. Must be compiled on the Raspberry Pi itself with --enable-jingtian